# PyAlgoTrade
#
# Copyright 2011-2018 Gabriel Martin Becedillas Ruiz
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

"""
.. moduleauthor:: Gabriel Martin Becedillas Ruiz <gabriel.becedillas@gmail.com>
"""

import os
import datetime

from . import common
try:
    # This will get environment variables set.
    from . import credentials
except:
    pass

from pyalgotrade import dispatcher

try:
    from pyalgotrade.twitter import feed as twitterfeed


    class TwitterFeedTestCase(common.TestCase):
        def testTwitterFeed(self):
            events = {
                "on_tweet": False,
                "start": datetime.datetime.now()
            }
            disp = dispatcher.Dispatcher()

            def on_tweet(data):
                events["on_tweet"] = True
                disp.stop()

            def on_idle():
                # Stop after 5 minutes.
                if (datetime.datetime.now() - events["start"]).seconds > 60*5:
                    disp.stop()

            # Create a twitter feed to track BitCoin related events.
            consumer_key = os.getenv("TWITTER_CONSUMER_KEY")
            consumer_secret = os.getenv("TWITTER_CONSUMER_SECRET")
            access_token = os.getenv("TWITTER_ACCESS_TOKEN")
            access_token_secret = os.getenv("TWITTER_ACCESS_TOKEN_SECRET")
            track = ["bitcoin", "btc"]
            follow = []
            languages = ["en"]
            twitterFeed = twitterfeed.TwitterFeed(
                consumer_key,
                consumer_secret,
                access_token,
                access_token_secret,
                track,
                follow,
                languages
            )

            disp.addSubject(twitterFeed)
            twitterFeed.subscribe(on_tweet)
            disp.getIdleEvent().subscribe(on_idle)
            disp.run()

            # Check that we received both events.
            self.assertTrue(events["on_tweet"])
except SyntaxError:
    # https://github.com/tweepy/tweepy/issues/1064
    pass
